پرتال زبان انگلیسی سراوان

1. Use "in" for written material.
(books, magazines, articles, newspapers, etc.)

Examples

 I read it IN a book.
She found the article IN a magazine.

2. Use "on" for electronics.
(the radio, the Internet, the telephone, television)

Examples

 We listened to a play ON the radio. 

 What did you see ON television last night?